1 files changed, 6 insertions, 0 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/ConstantTensor.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/ConstantTensor.java
index a0fd9272f54..92a72dfd280 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/ConstantTensor.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/ConstantTensor.java
@@ -9,6 +9,7 @@ import com.yahoo.tensor.evaluation.TypeContext;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * A function which returns a constant tensor.
@@ -49,4 +50,9 @@ public class ConstantTensor<NAMETYPE extends Name> extends PrimitiveTensorFuncti
     @Override
     public String toString(ToStringContext<NAMETYPE> context) { return constant.toString(); }
 
+    @Override
+    public int hashCode() {
+        return Objects.hash("constant", constant.hashCode());
+    }
+
 }